libcxx/test/std/utilities/function.objects/func.require/unary_function.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // <functional>
  10 // REQUIRES: c++03 || c++11 || c++14
  11 // unary_function was removed in C++17
  12
  13 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS
  14
  15 // unary_function
  16
  17 #include <functional>
  18 #include <type_traits>
  19
  20 #include "test_macros.h"
  21
  22 int main(int, char**)
  23 {
  24     typedef std::unary_function<int, bool> uf;
  25     static_assert((std::is_same<uf::argument_type, int>::value), "");
  26     static_assert((std::is_same<uf::result_type, bool>::value), "");
  27
  28   return 0;
  29 }